Title :
Performance Analysis of Multiuser Two-Way AF Relaying Networks with Antenna Correlation
Author :
Guo, Jing ; Pei, Chang-Xing ; Yang, Hong
Author_Institution :
State Key Lab. of Integrated Services Networks, Xidian Univ., Xi´´an, China
fDate :
9/1/2012 12:00:00 AM
Abstract :
In this paper, we investigate the effect of spatial correlation on the performance of multiuser two-way amplify-and-forward (AF) relaying system. The lower bound of the sum rate are derived. Furthermore, the asymptotic expressions of the sum rate are analyzed when the number of mobile stations K is sufficiently large. Analysis and simulation results indicate that the achievable sum rates depend on the degree of spatial correlation and the number of mobile stations K. Especially, our results reveal the impact of the relay location with unbalanced hops on the sum rates.
Keywords :
amplify and forward communication; antennas; amplify and forward relaying system; antenna correlation; mobile station; multiuser two way AF relaying networks; performance analysis; spatial correlation; Correlation; Performance analysis; Relays; Signal to noise ratio; Transmitting antennas; Upper bound; Spatial correlation; antenna selection; multiuser scheduling; two-way relay;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2012.073112.121247
